fixed imports. Maybe.

backend/src/core/config/environment.ts

@@ -3,7 +3,7 @@
  * @ai-context Validates all env vars at startup, single source of truth
  */
 import { z } from 'zod';
-import dotenv from 'dotenv';
+import * as dotenv from 'dotenv';
 
 dotenv.config();
 

backend/src/core/logging/logger.ts

@@ -2,7 +2,7 @@
  * @ai-summary Structured logging with Winston
  * @ai-context All features use this for consistent logging
  */
-import winston from 'winston';
+import * as winston from 'winston';
 import { env, isDevelopment } from '../config/environment';
 
 export const logger = winston.createLogger({